Well, it's... interesting...
I'm going to reserve judgment until I see more about the user interface, but even if it's the most intuitive thing ever, I have a hard time seeing the people it's targeted at (simple no-fuss shooters?) spending that much on a camera.
It certainly looks cool; I like the unibody; the haptic controls could be cool or could be awful. (Apple's done good haptic controls, like the trackpad for their last 10 years of laptops. Dell tried making the function key row all-haptic on an XPS laptop a couple of years ago, and from what I heard it didn't work very well.) Unless the rear screen is a quantum leap over every other rear screen-only camera I've ever used, it's still going to suffer badly from the lack of an EVF.
Other than the screen, it seems like a camera I could have fun shooting with, especially after my time with the fp... but it's very much in 'fun second or third camera' territory; not a daily driver. And you really need a good pancake lens to go with it, which Sigma doesn't have right now.
Showed the announcement to a non-photographer friend of mine, and his reaction was "Well that price makes my hair turn grey. But the point is to be a low profile, simple camera?... Yeah, I think that mostly fits with people who prize form above all. I could see a lot of influencers get it. At a lower price point, I'd think that's a really nice idea for people who don't want a bulky camera, but want something a little more familiar than their smartphone."